Charges against the Norton driver who allegedly struck and killed a Raynham man in late April have been upgraded to motor vehicle manslaughter.

Nicholas G. Salvo, 23, of South Washington Street in Norton, had previously been charged with motor vehicle homicide while under the influence of alcohol, failure to stop for a red light, reckless driving, speeding and a marked lanes violation.

A Bristol County Grand Jury has now indicted him on the more serious felony charge.

Gregg Miliote, spokesman for the Bristol County District Attorney’s Office, said he could not disclose the reason for the new charges because grand jury deliberations were sealed.

"All the evidence was presented to the grand jury and those were the charges to indict," he said.

The case will be moved to Fall River Superior Court. An arraignment date has not been scheduled. Salvo is free on $10,000 bail.

Police say Salvo was drunk and speeding when he ran a red light on Route 140 in Mansfield on April 26 and rammed into a vehicle that had the right of way.

The other driver, David Munise, 63, a father and grandfather, was on his way to work at Shaw’s Supermarket in Erin Crossing. He was taken to Sturdy Memorial Hospital in Attleboro where he was pronounced dead.

At a press conference held shortly after the accident, his grief-stricken son appealed to drivers not to get behind the wheel after drinking. He asked the public to donate to Mothers Against Drunk Driving in his father’s name.

"Behave for Dave will assist in preventing drunk driving accidents by funding programs that work to do so," he said.